If you don't care for the blemishes of his style, you will find that the writer has a powerful message to convey.

Answer: Option D

Excellences : the quality of being outstanding or extremely good.
Qualities : the standard of something as measured against other things of a similar kind; the degree of excellence of something.
Accusations : a charge or claim that someone has done something illegal or wrong.
Faults : an unattractive or unsatisfactory feature, especially in a piece of work or in a person's character.
Blemishes : a moral defect or fault.

Synonym of Blemishes is Faults